20673228570912 has 96 divisors (see below), whose sum is σ = 60582684576960. Its totient is φ = 6858417000960.

The previous prime is 20673228570881. The next prime is 20673228570923. The reversal of 20673228570912 is 21907582237602.

20673228570912 is a `hidden beast` number, since 2 + 0 + 6 + 7 + 32 + 28 + 570 + 9 + 12 = 666.

It is a tau number, because it is divible by the number of its divisors (96).

It is a Harshad number since it is a multiple of its sum of digits (54).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 56517573 + ... + 56882180.

It is an arithmetic number, because the mean of its divisors is an integer number (631069631010).

Almost surely, 2^{20673228570912} is an apocalyptic number.

It is an amenable number.

20673228570912 is an abundant number, since it is smaller than the sum of its proper divisors (39909456006048).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

20673228570912 is a wasteful number, since it uses less digits than its factorization.

20673228570912 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 113399983 (or 113399969 counting only the distinct ones).

The product of its (nonzero) digits is 5080320, while the sum is 54.

The spelling of 20673228570912 in words is "twenty trillion, six hundred seventy-three billion, two hundred twenty-eight million, five hundred seventy thousand, nine hundred twelve".